Cam mechanism for nttmbering-heads



H. LANGE.

CAM MECHANISM FOR NUMBERING HEADS. APPLICATION FILED lAN.8, 1911. RENEWED APR. 4. 1919.

1,320,480., Patented Nov. 4, 1919.

an ewes rarnn'r orrron.

HENRY-LANGE, oFL'os AIiGE'LEs, CALIFORNIA, AssIfGNon, BY ESNE ASSIGNMENTS,

' TO oscAn L. MOORE, or GHICAGO, ILLINOIS.

CAM MECHANISM FOR 'ivuMBEnING-HEADs.

Specification of Letters Batent. Patnted Nov 4, 1919,.

Application filed January 8, 1917, Serial No. 141,165. Renewed April 4,1919. SerialNo. 287,615.

To all 'whom'z't may Concern:

Be 1t known thatl, HENRY LAlNon, a c1t1- zen ofthe United States residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Cam Mechanism for Numbering-Heads, of which the following is a specification.

' In using numbering heads with rotary I presses it is often desirable to change the position of the head to invert the characters,

so when printed will read either from the 7 right or the left of the printed matter. Heads constructed to be operated by a'cam member afixed to the. press require the reversible cam to reverse the numbering head. Reversing the cam and placlng the head on the opposite side thereof results in a disturbance of the timing as the positions of the high and low parts of the cam are then reversed.

It is an object of my invention to provide a cam mechanism so constructed that a reversal of the cam will not reverse the cam points.

I have illustrated an embodiment of my invention in the accompanying drawing, in

which:

Figure 1 is a front view of my improved numbering head mechanism.

Fig. 2 is asectionas seeii on of Fig. 1.

Fig. 3 is an enlarged section as seen on the line 3-3 of Fig. 2.

A rotatable shaft 5 has mounted thereon numbering heads 6 and 7 which are secured to the shaft so they will rotate therewith. Numbering head 6 is operated through a cam 8, and numbering head '7 through a cam 9. The cams are fixedly secured against rotation. Numbering heads 6 and 7 are of a well known type of construction and are indicated conventionally.

Each head, shown herein, comprises four sets of numbering disks which are actuated the 11... 2-2

by fingers indicated by 10. The-fingers 10 are adapted to oscillate and are provided at the ends with followers 11 which ride in a cam grove formed in the cams.

Referring particularly to cam 9, the groove is indicated by 12. The groove 12 is a true circle, and is eccentric to the shaft 5. Arm 13 extends from the cam and is provided with a T 14 havin recesses 15 adapted to fit over rods 16 and 1?. A clamp member 18 cooperates with the member 14: to clamp bolt 19 is engaged with the threads in said bore. With my construction the axis pass ing through the arm of the cam is coincident with a diameter of the cam groove and passes through the center of the shaft 5. This disposes the high andj low points of the cam groove in a position, such that when the cam is reversed by turning it over about its axis, the positions of the high and low parts will not be changed.

When it is desired to reverse'the position of the numbering head and cam from that in which numbering head 7 and cam 9 aredisposed, the bolt 19 is loosenedto permit 6 the cam to be turned through an angle of This position is that in which numbering head 6 and cam 8 are disposed.-

In the rotation of shaft 5 the numbering heads are rotated and the fingers 10 ride in the cam slot 12 completing an oscillation in one revolution and changing the numbers. The sides of the angle of oscillation of the fingers 10 is'not changed by the reversal of the numbering head and cam. This feature is the important part of my invention. The numbering heads may be. keyed upon shaft 5 so that they can be removed'or their position changed axially of shaft 5 in order to print at the proper place on the web of paper which passes through the machine. It will also be noted that thenumbering heads are easily removable, as the cams maybe vided with actuating fingers, and a cam member reversible about an axis, thelow and high portions of the'cam disposed in said axis, said fingers riding on said cam.

3. The combination of a numbering head secured to a rotatable shaft, said head provided with actuating fingers extending theresecured to a rotatable shaft, saidhead profrom, and a cam reversible about an axis,

said eamhaving a true circle groove eccentrie't'osaidshaft; a diameter bf said groove GOlIlCldllig W1th sa1d"aX'1s' and extending through the axis of said shaft, said fingers riding in saidrgrooves.

vided;with actuating-fingers extending late er'ally therefrom, and a cam reversible. about an axis, said cam having a tr-uecirele face groove eccentric to said shaft,.a diameter of sa1d groove coinciding Withsaid aXis aiidextending through the axis of said shaft, said fiep i es of this patent'maybebb tained for five cents each, by addressing the "Co'nimissioner of Patents,

-- Washington, D. 0., 

